In-air repairing method for bearing position of output shaft shell of wind power gearbox

A technology for wind power gearboxes and repair methods, which is applied to transmission boxes and components with teeth, etc., which can solve problems such as assembly difficulties, reduce the service life of gearboxes, and small interference of bearing positions, so as to shorten the maintenance period and save energy. Material, high economic efficiency

Inactive Publication Date: 2019-05-17
TIANJIN TEEK TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The wind turbine gearboxes of existing high-power models generally adopt the structure of a two-stage planetary gear train and the final parallel speed-up stage, which are large-scale gearboxes, and their overall weight is generally more than 30 tons. The weight of the input planet carrier is several tons, and the assembly is relatively difficult. Due to reasons such as the design and processing of the gearbox, the interference of the bearing position is too small; moreover, due to the special operating environment of the gearbox

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] A method for repairing the vacancy of the output shaft shell bearing of a wind power gearbox, the steps are:

[0031] 1) First select the bearing 2 with the same bearing capacity as the original gearbox output shaft 4 to replace;

[0032] 2) The wear area of ​​the bearing 2 of the gearbox housing 6 is cleaned with cleaning agent Terente EC-00, and then the alloy material sleeve 1 is inlaid. The outer diameter of the sleeve 1 is based on the actual housing hole on the gearbox housing 6. The size is matched individually. The outer diameter of the sleeve 1 and the gearbox shell 6 adopts interference fit, and the interference is 0.03mm, which is installed by heating; the sleeve 1 and the gearbox shell 6 are fixed with a pin to prevent the sleeve The cylinder 1 rotates in a circle; the inner ring of the sleeve 1 and the outer ring of the bearing 2 are coated with glue and interference fit;

[0033] 3) The outer end of the bearing 2 is provided with a baffle 3 at the

Example Embodiment

[0036] Example 2

[0037] A method for repairing the vacancy of the output shaft shell bearing of a wind power gearbox, the steps are:

[0038] 1) First select the bearing 2 with the same bearing capacity as the original gearbox output shaft 4 to replace;

[0039] 2) The wear area of ​​the bearing 2 of the gearbox housing 6 is cleaned with cleaning agent Terente EC-00, and then a steel sleeve 1 is inserted. The outer diameter of the sleeve 1 is based on the actual housing hole on the gearbox housing 6. The size is matched individually. The outer diameter of the sleeve 1 and the gearbox shell 6 adopts interference fit, and the interference is 0.04mm, which is installed by heating; the sleeve 1 and the gearbox shell 6 are fixed with a pin to prevent the sleeve Cylinder 1 rotates in a circle; Loctite 640 glue is applied between the inner ring of sleeve 1 and the outer ring of bearing 2 and interference fit;

[0040] 3) The outer end of the bearing 2 is provided with a baffle 3 at the housi

Example Embodiment

[0043] Example 3

[0044] A method for repairing the vacancy of the output shaft shell bearing of a wind power gearbox, the steps are:

[0045] 1) First select the bearing 2 with the same bearing capacity as the original gearbox output shaft 4 to replace;

[0046] 2) The wear area of ​​the bearing 2 of the gearbox housing 6 is cleaned with cleaning agent Terente EC-00, and then a steel sleeve 1 is inserted. The outer diameter of the sleeve 1 is based on the actual housing hole on the gearbox housing 6. The size is matched individually. The outer diameter of the sleeve 1 and the gearbox shell 6 adopts interference fit, and the interference is 0.05mm, which is installed by heating; the sleeve 1 and the gearbox shell 6 are fixed with a pin to prevent the sleeve Cylinder 1 rotates in a circle; Loctite 640 glue is applied between the inner ring of sleeve 1 and the outer ring of bearing 2 and interference fit;

[0047] 3) The outer end of the bearing 2 is provided with a baffle 3 at the housi

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PUM

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Abstract

The invention discloses an in-air repairing method for the bearing position of an output shaft shell of a wind power gearbox. The repairing method comprises the following steps that 1) firstly, a bearing with the bearing force equivalent to the bearing force of an output shaft of an original gearbox is selected for replacement; 2) the wear area is thoroughly cleaned by using a cleaning agent, thena sleeve is embedded, the sleeve and the gearbox shell are fixed through a pin, and glue is coated between the inner ring of the sleeve and the outer ring of the bearing to be in interference fit; 3)if the size of the inner ring of the bearing is changed, the size of the matched end face of a baffle needs to be changed; 4) in order to ensure that the transverse clearance between bearing rollersof the new bearing and the inner ring of the bearing is 2 mm and the width size of the bearing is changed, a spacer ring is additionally arranged between a front bearing position retaining shoulder ofthe output shaft and the inner ring of the bearing; and 5) if the inner diameter size of the new type of bearing which is used for replacement is changed, the shaft diameter of the output shaft needsto be reworked. According to the in-air repairing method for the bearing position of the output shaft shell of the wind power gearbox, the effect that for the remanufacturing technology is applied tothe repair of the bearing position of the output shaft shell of the wind power gearbox is achieved, the remanufacturing quality is not lower than or even higher than that of an original product, andthe in-air maintenance period can be shortened. According to the technical scheme, materials, energy and cost are saved, and the economic benefit is quite high.

Description

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Claims

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Application Information

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Owner TIANJIN TEEK TRANSMISSION
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